Bail chaie



v Y a 1 w. M. OSBORN j 2 RAIL CHAIR Original Filed n 27. 1924 Reissue dApr. 12, 1927.

RAIL CHAIR.

Original No. 1,518,871, dated December 9, 1924, Serial No. 722,724,filed June 2 7 1924. Application for reissue filed December 1, 1926.

This invention relates to chairs for rail way rails, and its object isto provide certain features of construction which afford noveladvantages and capabilities in this class of devices when the chairs areeither set into .or fastened upon the top surfaces of wooden, .railroadties, or are set into or embedded in concrete roadbeds, and particularlyin the chairs shown in'my United States Patent No. 1,077 ,367 datedNovember 4, 1913.

I In the accompanying drawings, Fig. 1 is a plan view of a section oftrack equipped with chairs constructed in accordance with my invention;Fig. 2 is a view in side elevation of the same and shows the chairsapplied to wood, concrete and metal ties; Fig; 3 is a view partly inside elevation and partly in section on the line 3-3 in Fig. 1; Fig. 4is a similar view on the line ks! in Fig. 1; Fig. 5 is a similar view onthe line 5-5 in vFi 1;Fig. 6 is an end View on an enlarge scale showingthe chair at the wide end of the rail-space;Fig. 7 is a plan view of theohairon an enlarged scale, and Fig. 8 is an end View of the chair at thenarrow end of the rail-space;

In the drawings the reference letter A rep- ;1esents the head, B the weband G the base .of a conventional-rail.

The rail chair is made of metal and has a base 1 which acts as atie-plate to support the rail. This base plate is provided with upwardlyprojecting side walls 2 which extend obliquely or angularly toward eachother with relation to the longitudinal axis of the chair to. form atapering rail space between them; in some instances I prefer that theside Walls shall also incline inwardly toward each other from the bottomup wardly, so that the intermediate area is wider not only at one end ofthe chair than at the other end, but is wider atits bottom than at thetop at both ends to provide a tapering and dovetail or undercutrail-space. When the chair is to be placed on the top of a tie its baseis provided with side ears 3 having holes 4 for the tie spikes or bolts(not shown); the ears are spaced inwardly from the ends of the base sothat the bolts or spikes will not enter the ties close to the edgesthereof but will be substantially within their area. If desire-d thechair may be seated more or less in a correspondingly UNITED STATES PATNT orrlca.

WARREN M. OSBORN, OF CHICAGO, ILLINOIS.

.used with a concrete tie ,6 or with a metal tie able material may beplaced beneath it,

shown in Figs. 2 and 5, or the cushioning concrete, metallic orcompositeample in Fig. 1

Serial No. 152,039.

shaped opening or a,i concrete inc 6,

in the top of a wooden tie 5 and when the chair 1S 7 a cushioning block8 of wood or other suitblock may be placed in the chair as shown in Fig.8. 1VVhen the chairs have been positioned on the ties the rails areseated in the rail-spaces intermediate their side walls, and wedges 9,preferably made of waterproofed wood, are driven into the spaces betweenthe side walls 2 and the sides of the rail. These wedges preferably havetheir opposite sides conforming to the contours of the sides .ofctherail ,audthe sidewalls of the chairs respectively, as shown for exin mysaid patent; they are slightly larger in section than the spaces betweenthe rail and side walls of the chair so that when seated they completelyfill this space and they are of .sufiicient length to have their smallends extend beyond the side walls of the chairs when in place so thatthese ends may expand after they are in place "and form keys the sidewall, and also enables the small. I

end of the wedge to expand to form a key without projecting beyond thebase, so that the assembled parts are compact and practically within thearea of the tie. While I prefer to use wooden wedges as this materialcushions the structure and eliminates noise, the wedges may be made ofother material.

The chairs are primarily intended for use on one way traclt, set withthe narrow end of the rail-space pointed in the direction of thetraiiic, and their bases are provided at the wide or approach end of therail-space with. depending lips ll. which may be formed in one piece asin Fig. 8 or in sections as in Fig. 6; these lips engage the forwardsides of the ties and resist the tendency of the chairs to movelongitudinally under the influence of the traffic or creeping of therail, and consequently the spike or bolt holes 4 can be slotted orelongated in the line of the rail so that no longitudinal strains areimposed upon the spikes or bolts and their function. is limited toholding the chairs and rail in track-gauge. lVhen the chairs are used intwo-way track, or when they are used with dimension ties, i. e., ties ofstandard or uniform widths such for example as metal or concrete ties,the bases may be provided at the narrow end of the rail space withdepending lips 12, which resist all strains and stresses when tralficpasses in the opposite direction and similarly take all longitudinalstrains ofl' the spikes. Also, when a chair is seated in an opening inthe top of a tie the lips take all the longitudinal strains and stressesoff of the seat in the tie so that its function is merely to hold thetrack in gauge. By using both lips the base is of box-like formation toembrace or engage both sides of the tie, so that the tendency of thechair to move and rattle on the tie is obviated. hen the chairs are setinto or embedded in concrete road-beds their lips engage the concrete tohold the chairs in track-gauge and prevent them from movinglongitudinally.

\Vhere a chair is used at a joint between the ends of two rails itswedges are driven in outside of the fish plates 13. The chairs may beset so that the wedges are all driven in one direction, or some of thechairs may be set so that their wedges will be driven in oppositely.

The relative lengths of the wedges and side walls are important as thesmall end of the wedge will get a positive hold on the wall due to itsfibres pressing or expanding outward so as to lie against the edge ofthe the passage wall after being compressed in between the rail andwall.

I claim:

1. A metallic rail-chair having a base and side walls forming a taperingrail-space and having their tops shorter than the base, and wooden wedes adapted to be driven into said space and being longer than the topsof the side walls when in place.

2. A metallic rail-chair having a base and side walls torn'iing atapering rail-space and terminating short of the ends of the base, andwooden wedges adapted to be driven into said space and being longer thanthe side walls when. in place.

3. A metallic rail-chair having a base, side walls forming a taperingrail space and tern'iinating short of the ends of the base, a dependinglip at the end of the base adjacent the wide end. of said rail space,and wooden wedges adapted to be driven into said space and being longerthan the side walls when in place.

A metallic rail-chair having a base, side walls forming a taperingrail-space and terminating short of the ends of the base, and adepending into said space and being longer than the side walls when inplace.

5. A metallic rail-chair having a base and side walls forming a taperingrail-space, and resilient sound ed to be driven into said space betweenthe side walls and an associated rail'and being longer than the tops ofthe side walls when in place.

lip at each end of the base, i and wooden wedges adapted to bedrivendeadening wedges adapt- 6. A metallic rail-chair having a base andside walls forming a tapering rail-space, a cushioning block seated insaid space'on the base-and resilient sound deadening wedges adapted tobe driven into said space between the side walls and an associated railand being longer than the tops of the side walls.

In testimony whereof I hereto aflix my signature.

WARREN M. OSBORN.

